Cleanup code in printing/

printing/pdf_metafile_cg_mac.h

Index: printing/pdf_metafile_cg_mac.h
diff --git a/printing/pdf_metafile_cg_mac.h b/printing/pdf_metafile_cg_mac.h
index 26aed5cc876eeb8c3ae644ef0849a6acbefe8e67..4710879439141917d060e918d578d7d30080c3bb 100644
--- a/printing/pdf_metafile_cg_mac.h
+++ b/printing/pdf_metafile_cg_mac.h
@@ -33,7 +33,7 @@ class PRINTING_EXPORT PdfMetafileCg : public Metafile {
 
   // Metafile methods.
   bool Init() override;
-  bool InitFromData(const void* src_buffer, uint32 src_buffer_size) override;
+  bool InitFromData(const void* src_buffer, uint32_t src_buffer_size) override;
 
   // Not implemented on mac.
   bool StartPage(const gfx::Size& page_size,
@@ -42,8 +42,8 @@ class PRINTING_EXPORT PdfMetafileCg : public Metafile {
   bool FinishPage() override;
   bool FinishDocument() override;
 
-  uint32 GetDataSize() const override;
-  bool GetData(void* dst_buffer, uint32 dst_buffer_size) const override;
+  uint32_t GetDataSize() const override;
+  bool GetData(void* dst_buffer, uint32_t dst_buffer_size) const override;
 
   gfx::Rect GetPageBounds(unsigned int page_number) const override;
   unsigned int GetPageCount() const override;